[INFO] fetching crate ownables 0.1.1...
[INFO] testing ownables-0.1.1 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate ownables 0.1.1 into /workspace/builds/worker-6-tc2/source
[INFO] started tweaking crates.io crate ownables 0.1.1
[INFO] finished tweaking crates.io crate ownables 0.1.1
[INFO] tweaked toml for crates.io crate ownables 0.1.1 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate ownables 0.1.1 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate ownables 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 984162bb16eb9468b9b47f4561b2c6716e0b97d7842c0fcac22a69cfe5c427e6
[INFO] running `Command { std: "docker" "start" "-a" "984162bb16eb9468b9b47f4561b2c6716e0b97d7842c0fcac22a69cfe5c427e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "984162bb16eb9468b9b47f4561b2c6716e0b97d7842c0fcac22a69cfe5c427e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "984162bb16eb9468b9b47f4561b2c6716e0b97d7842c0fcac22a69cfe5c427e6", kill_on_drop: false }`
[INFO] [stdout] 984162bb16eb9468b9b47f4561b2c6716e0b97d7842c0fcac22a69cfe5c427e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fa2d3b1058e022d48deba969e87d6e32d13f4411dc1574404e8d727313ae7e5
[INFO] running `Command { std: "docker" "start" "-a" "2fa2d3b1058e022d48deba969e87d6e32d13f4411dc1574404e8d727313ae7e5", kill_on_drop: false }`
[INFO] [stderr]    Compiling ownables v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn take(&mut self) -> TakenGuard<Self, Self::Item>
[INFO] [stdout]    |             ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn take(&mut self) -> TakenGuard<'_, Self, Self::Item>
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn take(&mut self) -> TakenGuard<Self, Self::Item> {
[INFO] [stdout]    |             ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn take(&mut self) -> TakenGuard<'_, Self, Self::Item> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "2fa2d3b1058e022d48deba969e87d6e32d13f4411dc1574404e8d727313ae7e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fa2d3b1058e022d48deba969e87d6e32d13f4411dc1574404e8d727313ae7e5", kill_on_drop: false }`
[INFO] [stdout] 2fa2d3b1058e022d48deba969e87d6e32d13f4411dc1574404e8d727313ae7e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05411d4b22f7a739fae862fd5ed803a40262a4e032753b397b97c97644390ecb
[INFO] running `Command { std: "docker" "start" "-a" "05411d4b22f7a739fae862fd5ed803a40262a4e032753b397b97c97644390ecb", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn take(&mut self) -> TakenGuard<Self, Self::Item>
[INFO] [stdout]    |             ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn take(&mut self) -> TakenGuard<'_, Self, Self::Item>
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn take(&mut self) -> TakenGuard<Self, Self::Item> {
[INFO] [stdout]    |             ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn take(&mut self) -> TakenGuard<'_, Self, Self::Item> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ownables v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn take(&mut self) -> TakenGuard<Self, Self::Item>
[INFO] [stdout]    |             ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn take(&mut self) -> TakenGuard<'_, Self, Self::Item>
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:39:13
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn take(&mut self) -> TakenGuard<Self, Self::Item> {
[INFO] [stdout]    |             ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |             |
[INFO] [stdout]    |             the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn take(&mut self) -> TakenGuard<'_, Self, Self::Item> {
[INFO] [stdout]    |                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[INFO] running `Command { std: "docker" "inspect" "05411d4b22f7a739fae862fd5ed803a40262a4e032753b397b97c97644390ecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05411d4b22f7a739fae862fd5ed803a40262a4e032753b397b97c97644390ecb", kill_on_drop: false }`
[INFO] [stdout] 05411d4b22f7a739fae862fd5ed803a40262a4e032753b397b97c97644390ecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9b8c1bb0762347e15c3ab45bd98879b9d87808b421ec028a5ef8710241ee1aae
[INFO] running `Command { std: "docker" "start" "-a" "9b8c1bb0762347e15c3ab45bd98879b9d87808b421ec028a5ef8710241ee1aae", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:13:13
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn take(&mut self) -> TakenGuard<Self, Self::Item>
[INFO] [stderr]    |             ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 13 |     fn take(&mut self) -> TakenGuard<'_, Self, Self::Item>
[INFO] [stderr]    |                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:39:13
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn take(&mut self) -> TakenGuard<Self, Self::Item> {
[INFO] [stderr]    |             ^^^^^^^^^     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |             |
[INFO] [stderr]    |             the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn take(&mut self) -> TakenGuard<'_, Self, Self::Item> {
[INFO] [stderr]    |                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: `ownables` (lib) generated 2 warnings (run `cargo fix --lib -p ownables` to apply 2 suggestions)
[INFO] [stderr] warning: `ownables` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ownables-5b0f3c78f6637f3a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ownables
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - OwnableCell<T> (line 29) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - OwnableCell<T> (line 29) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `item` in this scope
[INFO] [stdout]   --> src/lib.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut guard = item.take();
[INFO] [stdout]    |                     ^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `OwnableCell` in this scope
[INFO] [stdout]   --> src/lib.rs:30:18
[INFO] [stdout]    |
[INFO] [stdout] 30 | let mut source = OwnableCell::Available(100);
[INFO] [stdout]    |                  ^^^^^^^^^^^ use of undeclared type `OwnableCell`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - OwnableCell<T> (line 29)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.19s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 0.32s; merged doctests compilation took 0.13s
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "9b8c1bb0762347e15c3ab45bd98879b9d87808b421ec028a5ef8710241ee1aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b8c1bb0762347e15c3ab45bd98879b9d87808b421ec028a5ef8710241ee1aae", kill_on_drop: false }`
[INFO] [stdout] 9b8c1bb0762347e15c3ab45bd98879b9d87808b421ec028a5ef8710241ee1aae
